啟動錯誤信息如下
Service org.apache.hadoop.yarn.server.nodemanager.recovery.NMLeveldbStateStoreService failed in state INITED; cause: org.fusesource.leveldbjni.internal.NativeDB$DBException: Corruption: CURRENT file does not end with newline
org.fusesource.leveldbjni.internal.NativeDB$DBException: Corruption: CURRENT file does not end with newline
at org.fusesource.leveldbjni.internal.NativeDB.checkStatus(NativeDB.java:200)
at org.fusesource.leveldbjni.internal.NativeDB.open(NativeDB.java:218)
at org.fusesource.leveldbjni.JniDBFactory.open(JniDBFactory.java:168)
at org.apache.hadoop.yarn.server.nodemanager.recovery.NMLeveldbStateStoreService.initStorage(NMLeveldbStateStoreService.java:864)
at org.apache.hadoop.yarn.server.nodemanager.recovery.NMStateStoreService.serviceInit(NMStateStoreService.java:195)
at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
at org.apache.hadoop.yarn.server.nodemanager.NodeManager.initAndStartRecoveryStore(NodeManager.java:155)
at org.apache.hadoop.yarn.server.nodemanager.NodeManager.serviceInit(NodeManager.java:193)
at org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
at org.apache.hadoop.yarn.server.nodemanager.NodeManager.initAndStartNodeManager(NodeManager.java:462)
at org.apache.hadoop.yarn.server.nodemanager.NodeManager.main(NodeManager.java:509)
問題應該是，虛擬斷電造成的問題見錯誤。
CURRENT 文件在/var/lib/hadoop-yarn/yarn-nm-recovery/yarn-nm-state目錄序下，
這個文件是自動生成，將CURRENT 文件刪除后，重啟yarn服務即可。